100 mm Brass Lock Cylinder for Front Door

100 mm copper lock cylinder with all-copper core, single opening

This 100 mm lock cylinder is designed for replacement or installation on a door requiring a reliable and durable mechanical solution. Made of copper with a copper core, it is suitable for users looking for a robust lock barrel for residential or professional use. Its pin-type format in a European profile shape, often called a lyre-style lock cylinder, allows suitable use on many front doors, secure interior doors, office doors or secondary access points.

Thanks to its copper metal construction, this cylinder offers good resistance to wear over time. The single-opening operation is suitable for configurations where locking and unlocking are carried out from one side only, depending on the intended installation. This type of lock is particularly popular for renovation, maintenance or replacing an old barrel.

Main advantages

• Copper body and core for improved durability
• 100 mm format suitable for different door thicknesses depending on the configuration
• Lock mechanism designed for daily use
• Good mechanical stability and smooth handling
• Suitable solution for both renovation and new installation

Usage scenarios

• Replacing a worn cylinder on a front door
• Installation on a home, office or outbuilding door
• Use on wooden doors, metal doors or certain composite doors depending on compatibility
• Maintenance project in a domestic or small commercial environment

Product features

The cylinder has a copper structure with a copper core, a material choice valued for its corrosion resistance and longevity. The barrel is designed to ensure precise locking and smooth key rotation when installation is carried out correctly. The 100 mm length makes it a model intended for doors requiring a longer cylinder than standard formats. It is therefore important to check the centre distance and the total door thickness before purchase.

This door hardware component may suit various locksmithing needs. For private individuals, it represents a useful spare part for restoring the proper operation of a lock. For maintenance or fitting professionals, it can be integrated into installation or replacement work on site.

Technical parameters

• Product type: lock cylinder
• Product name: all-copper lock cylinder with copper core
• Opening mode: single opening
• Cylinder length: 100 mm
• Main material: copper
• Core: copper
• Colour: copper tone / coppery brass depending on production batch
• Weight: 0.365 kg
• Package or reference dimensions: 100 x 17 x 33 cm
• Type of use: replacement or installation of door lock

Installation and usage advice

Before fitting, measure the old cylinder precisely in order to confirm the total length of 100 mm and the side distribution if necessary. Also check the door thickness, the rose, the backplate and the alignment of the lock. Correct installation improves the smoothness of the mechanism and limits premature wear. During fitting, avoid forcing the key if the cylinder is not perfectly centred.

To extend the life of the barrel, it is advisable to keep the area clean and dry and to use a lubricant suitable for locks if needed. The use of non-specific oils may attract dust and impair the mechanism over time.

Package contents

• 1 100 mm copper lock cylinder, single opening

This copper lock cylinder is a practical choice for users looking for a reliable hardware part, simple to integrate into a barrel replacement project. Its 100 mm format, all-copper design and versatile use make it a solution suited to common locksmithing needs on the French market.